def test0(a, b, c):
    print(a, b, c)


def test1(a=1, b=2, c=3):
    print(a, b, c)
    
def test2(a, b=2, c=3):
    print(a, b, c) 

def test3(a, b, c=3):
    print(a, b, c)
    
# def test4(a = 1, b = 2, c):
#     print(a, b, c)
    
# def test5(a = 1, b, c):
#     print(a, b, c)
    
# def test6(a, b = 2, c):
#     print(a, b, c)